42188-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42188-93-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,8 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42188-93:
(7*4)+(6*2)+(5*1)+(4*8)+(3*8)+(2*9)+(1*3)=122
122 % 10 = 2
So 42188-93-2 is a valid CAS Registry Number.
42188-93-2Relevant academic research and scientific papers
RING CLEAVAGE AND RECONSTRUCTION OF FIVE AND SIX MEMBERED RING
Suemune, Hiroshi,Oda, Kozo,Sakai, Kiyoshi
, p. 3373 - 3376 (2007/10/02)
Under the acetalization conditions using BF3-etherate/ethylene glycol, cyclopentanones and cyclohexanones with the carbonyl function at the C3- or C4-position of the β-side chain undergo the facile ring cleavage to reconstruct the new ring.
